PMID- 15876390
OWN - NLM
STAT- MEDLINE
DCOM- 20050727
LR  - 20161124
IS  - 0045-6535 (Print)
IS  - 0045-6535 (Linking)
VI  - 59
IP  - 10
DP  - 2005 Jun
TI  - Testing common sediment-porewater distribution models for their ability to 
      predict dissolved concentrations of POPs in The Grenlandsfjords, Norway.
PG  - 1475-85
AB  - This study compares in situ observed porewater concentration of persistent 
      organic pollutants (POPs) with predictions by common solid-water phase 
      distribution models. Bottom sediments were sampled in The Grenlandsfjords, 
      Norway, and the interstitial porewater was isolated from the solids by 
      centrifugation and filtration. Both phases were analysed for polychlorinated 
      dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/F), polycyclic aromatic 
      hydrocarbons (PAH), and organic carbon. Based on the sediments' solid phase 
      content of POPs, organic carbon, and soot carbon, we used the organic matter 
      partitioning (OMP), and also the soot and organic matter partitioning (SOMP) 
      model to estimate the porewater concentration. The OMP model gave better 
      agreement to observations than the SOMP model for both PCDD/Fs and PAHs. The 
      observed concentration of the PCDD/Fs in the sediments' porewater was much higher 
      than in the deep water of the fjord. The logarithm of the organic matter-water 
      partitioning coefficent (log K(OC)) in the porewater had positive linear 
      regression on the logarithm of the octanol-water partitioning coefficient (log 
      K(OW)). The slope of the regression model was indistinguishable from 1, except 
      for the PAHs as a group which had a slope less than 1. This contrasts to previous 
      studies undertaken in The Grenlandsfjords water column, where the slopes were 
      higher than 1 for PCDD/Fs, and the K(OC) were much higher than the K(OW). One 
      explanation may be that the influence of POPs adsorption to soots decrease 
      because competitive sorption by other compounds in the sediment are higher than 
      in the water column. This indicates that the sorption isotherms for these POPs 
      need better understanding in order to be applicable in both the water column and 
      the porewater.
FAU - Persson, N Johan
AU  - Persson NJ
AD  - Institute of Applied Environmental Research (ITM), Stockholm University, 106 91 
      Stockholm, Sweden.
FAU - Bucheli, Thomas D
AU  - Bucheli TD
FAU - Gustafsson, Orjan
AU  - Gustafsson O
FAU - Broman, Dag
AU  - Broman D
FAU - Naes, Kristoffer
AU  - Naes K
FAU - Ishaq, Rasha
AU  - Ishaq R
FAU - Zebuhr, Yngve
AU  - Zebuhr Y
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 7440-44-0 (Carbon)
SB  - IM
MH  - Algorithms
MH  - Carbon/analysis
MH  - Chemical Phenomena
MH  - Chemistry, Physical
MH  - Fresh Water/*analysis
MH  - Geologic Sediments/*analysis
MH  - Models, Statistical
MH  - Norway
MH  - Polycyclic Aromatic Hydrocarbons/analysis
MH  - Regression Analysis
MH  - Thermodynamics
MH  - Water Pollution/*analysis
EDAT- 2005/05/07 09:00
MHDA- 2005/07/28 09:00
CRDT- 2005/05/07 09:00
PHST- 2004/03/10 00:00 [received]
PHST- 2004/07/09 00:00 [revised]
PHST- 2004/08/18 00:00 [accepted]
PHST- 2005/05/07 09:00 [pubmed]
PHST- 2005/07/28 09:00 [medline]
PHST- 2005/05/07 09:00 [entrez]
AID - S0045-6535(04)00704-0 [pii]
AID - 10.1016/j.chemosphere.2004.08.040 [doi]
PST - ppublish
SO  - Chemosphere. 2005 Jun;59(10):1475-85. doi: 10.1016/j.chemosphere.2004.08.040.